Review Science

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground. What is the independent variable?

• Dropping the same way

• Wing Length

• Amount of time it takes the helicopter to hit the floor

• Dropping from the same height

What should a scientist do if their results don't support the hypothesis?

• do more trials

• change the data to make it fit with the hypothesis

• change the experiment to fit with the hypothesis

• form a new hypothesis and experiment

Tags

NGSS.HS-PS1-2

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the dependent variable?

• Dropping the same way

• Wing Length

• Amount of time it takes the helicopter to hit the floor

• Dropping from the same height

Cindy wanted to find out how the amount of sunlight affects the growth of plants. She placed two tomato plants in 10 inch pots with potting soil and watered them ¼ cup each day. One plant was placed under a cardboard box and one was placed in the sunlight. She measured the growth of the plant each week for three weeks. Based on this procedure, what is Cindy investigating?

• Using the same type of plant

• Each plant was placed in a 10 inch pot

• The growth of the plant

• One plant is in the sunlight and the other is under a box

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Design an experiment to test the effect of sunlight on the rate of photosynthesis in a plant. What would be your control variable?

• The type of plant used

• The amount of water given to the plant

• The amount of sunlight each plant receives

• The temperature of the environment

Tags

DOK Level 3: Strategic Thinking

How would you use the scientific method to determine the relationship between the mass of an object and its acceleration due to gravity?

• Calculate the force on different masses and measure the acceleration

• Drop objects of different masses from the same height and time their descent

• Increase the mass of an object while keeping the force constant

• Keep the mass constant and vary the force applied

Tags

DOK Level 3: Strategic Thinking

Trying to find answers to things we don't understand is why we have the subject of ________.

• science

• math

• reading

• social studies

Tags

NGSS.MS-ESS3-5

This step of the scientific method is an educated guess or a prediction. 

• Hypothesis

• Research

• Observation

• Conclusion

What is being kept constant?

• ramp height

• speed of the ball rolling

• type of ball

Why would a scientific theory be modified?

• a single new experiment gave different data

• a scientist said it should

• several different scientists contributed the same new information

• the scientist that wrote the theory became famous

Tags

NGSS.MS-LS2-4

NGSS.MS-PS1-2